ES417776A1 - Procedure for the purification of the phosphoric acid obtained via wet, through a chemical treatment. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the purification of the phosphoric acid obtained via wet, through a chemical treatment. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES417776A1
ES417776A1 ES417776A ES417776A ES417776A1 ES 417776 A1 ES417776 A1 ES 417776A1 ES 417776 A ES417776 A ES 417776A ES 417776 A ES417776 A ES 417776A ES 417776 A1 ES417776 A1 ES 417776A1
Authority
ES
Spain
Prior art keywords
phosphoric acid
translation
purification
procedure
machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES417776A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foret SA
Original Assignee
Foret SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foret SA filed Critical Foret SA
Priority to ES417776A priority Critical patent/ES417776A1/en
Priority to IL45359A priority patent/IL45359A/en
Priority to EG305/74A priority patent/EG11611A/en
Priority to NL7410253A priority patent/NL7410253A/en
Priority to DE2436921A priority patent/DE2436921A1/en
Priority to BR6306/74A priority patent/BR7406306D0/en
Priority to BE2053783A priority patent/BE818286A/en
Priority to AR255019A priority patent/AR200451A1/en
Priority to TR18225A priority patent/TR18225A/en
Publication of ES417776A1 publication Critical patent/ES417776A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/237—Selective elimination of impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Silicon Compounds (AREA)

Abstract

Procedure for the purification of the phosphoric acid obtained by wet means, by means of a chemical treatment, characterized in that the phosphoric acid of the wet method, after filtering and cooling, is treated with phosphate rock (phosphorite) finely pulverized with calcium sulfate dihydrate until obtaining a content of 1,4 ± 0.2% SO4H2, and with sodium ions from a soluble salt in the precise amount to remove fluorine and silicon anhydride with formation of sodium fluosilicate; a supersaturated suspension of solids consisting of calcium sulfate dihydrate, sodium fluosilicate and small amounts of monocalcium phosphate dihydrate is maintained for a variable time from a minimum of eight hours, by violent agitation; and finally the purified phosphoric acid and the sludge are separated, with eventual recovery of the phosphoric acid contained in them. (Machine-translation by Google Translate, not legally binding)
ES417776A 1973-08-01 1973-08-01 Procedure for the purification of the phosphoric acid obtained via wet, through a chemical treatment. (Machine-translation by Google Translate, not legally binding) Expired ES417776A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ES417776A ES417776A1 (en) 1973-08-01 1973-08-01 Procedure for the purification of the phosphoric acid obtained via wet, through a chemical treatment. (Machine-translation by Google Translate, not legally binding)
IL45359A IL45359A (en) 1973-08-01 1974-07-28 Process for the purification of phosphoric acid
EG305/74A EG11611A (en) 1973-08-01 1974-07-30 Process for purified the phosphoric acid obtained by moist way by treating chimique
NL7410253A NL7410253A (en) 1973-08-01 1974-07-30 PROCESS FOR PURIFICATION OF PHOSPHORIC ACID ACQUIRED ALONG WET ROAD BY CHEMICAL TREATMENT.
DE2436921A DE2436921A1 (en) 1973-08-01 1974-07-31 Chemical purifn of wet process phosphoric acid - by treatment with phosphate rock, calcium sulphate and sodium ions
BR6306/74A BR7406306D0 (en) 1973-08-01 1974-07-31 PROCESS FOR PURIFICATION OF PHOSPHORIC ACID OBTAINED BY HUMID VAT THROUGH CHEMICAL TREATMENT
BE2053783A BE818286A (en) 1973-08-01 1974-07-31 PROCESS FOR THE PURIFICATION OF PHOSPHORIC ACID OBTAINED BY WET METHOD
AR255019A AR200451A1 (en) 1973-08-01 1974-08-01 PROCEDURE FOR THE PURIFICATION OF PHOSPHORIC ACID OBTAINED BY WET VIA, BY MEANS OF A CHEMICAL TREATMENT
TR18225A TR18225A (en) 1973-08-01 1974-08-01 EXCLUSIVE PROCEDURE FOR THE DISPOSAL OF PHOSPHORIC ACID OBTAINED AS A LEGAL WITH A CHEMICAL TREATMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES417776A ES417776A1 (en) 1973-08-01 1973-08-01 Procedure for the purification of the phosphoric acid obtained via wet, through a chemical treatment. (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES417776A1 true ES417776A1 (en) 1976-02-16

Family

ID=8464811

Family Applications (1)

Application Number Title Priority Date Filing Date
ES417776A Expired ES417776A1 (en) 1973-08-01 1973-08-01 Procedure for the purification of the phosphoric acid obtained via wet, through a chemical treatment. (Machine-translation by Google Translate, not legally binding)

Country Status (9)

Country Link
AR (1) AR200451A1 (en)
BE (1) BE818286A (en)
BR (1) BR7406306D0 (en)
DE (1) DE2436921A1 (en)
EG (1) EG11611A (en)
ES (1) ES417776A1 (en)
IL (1) IL45359A (en)
NL (1) NL7410253A (en)
TR (1) TR18225A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU80676A1 (en) * 1978-12-19 1980-07-21 Metallurgie Hoboken PROCESS FOR REMOVING DIRTY AGENTS FROM PHOSPHORIC ACID
DE3003250C2 (en) * 1980-01-30 1982-09-16 Klöckner-Humboldt-Deutz AG, 5000 Köln Process for separating solids from phosphoric acid
CN110483125B (en) * 2019-08-02 2022-03-04 史丹利化肥当阳有限公司 Method for producing raw material for sulfur-based compound fertilizer by using waste phosphoric acid

Also Published As

Publication number Publication date
IL45359A (en) 1978-08-31
EG11611A (en) 1977-09-30
BE818286A (en) 1974-11-18
AR200451A1 (en) 1974-11-08
DE2436921A1 (en) 1975-02-13
BR7406306D0 (en) 1975-05-20
IL45359A0 (en) 1974-10-22
TR18225A (en) 1976-11-05
NL7410253A (en) 1975-02-04

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